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Power n Distribution :( > Assessment 3 > Flashcards

Assessment 3 Flashcards

1
Q

What breakers are not fitted to Type 23’s?

A

Busbar Linking Breaker

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2
Q

Why is electric propulsion preferred when involved in anti-submarine warfare?

A

Quieter

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3
Q

What type of EDP is a Shedable EDP?

A

Type 3

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4
Q

How is 440v produced on a Type 45?

A

Transformer

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5
Q

What does EMACB stand for?

A

Electric Motor Air Circuit Breaker

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6
Q

Why is 750v DC produced?

A

For propulsion

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7
Q

Where can the propulsion motors be controlled from in an emergency?

A

From the converter regulator cabinet

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8
Q

What is the output of a type 45 generator driven by a gas turbine?

A

4.160kV, 60Hz, 3 Phase 21MW

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9
Q

What equipment is not supplied by the emergency generator?

A

Galley equipment

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10
Q

What is the output of the emergency generator on a Type 23?

A

270Kw, 440v, 60Hz, 3 phases

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11
Q

How many main generators are usually fitted to a Type 23?

A

4

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12
Q

Why do we have shedable’s?

A

So we can re-direct power from unimportant supplies to propulsion

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13
Q

How do the Main Generators on a Type 23 produce 440v?

A

A 4-position switch

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14
Q

What does EDP stand for?

A

Electrical Distribution Panel

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15
Q

How many shore supply boxes are on a Type 23?

A

2

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16
Q

What is the output of a Type 23 generator?

A

1.3 MW, 600v, 61.2Hz, 3 Phase

17
Q

What does IEP stand for?

A

Integrated Electrical Propulsion

18
Q

How is 440v for ships services produced on a Type 23?

A

Motor Generators

19
Q

What is used to cool the harmonic filters?

A

AIR is used to cool the Harmonic Filters. The air is cooled using the ships Chilled Water system

20
Q

What breaker connect the forward and after switchboards together?

A

interconnector breaker

21
Q

What does PMS stand for in a type 45?

A

Platform Management System

22
Q

Where can the four position switch be found that re-configures a generator to supply 450v?

A

Rear of switchboard

23
Q

What is the output of the gas turbine generators on a Type 45?

A

21Mw, 4160v, 60Hz 3 phases

Power n Distribution :( (5 decks)

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